Brt-590. Wt = 6.00g. Diam = 20.4-21.0mm

Stevens Collection

 

 

Photo from Anonymous

 

Wt = 6.10g. Diam = 19-20.5mm

Photo from Zeno 152142 posted by Lingen

 

Wt = 5.80g

Photo from Steve Album, sale 15, lot 1122